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Screensize: 640 x 480 800 x 600 1024 x 768 1280 x 1024 UserName: Password: Format Mode: Basic  Help  Prompt  Format: Font Andale Mono Arial Arial Black Book Antiqua Century Gothic Comic Sans MS Courier New Georgia Impact Lucida Console Script MT Bold Stencil Tahoma Times New Roman Trebuchet MS Verdana   Size 1 2 3 4 5 6   Color Black Red Yellow Pink Green Orange Purple Blue Beige Brown Teal Navy Maroon LimeGreen Alice Blue Antique White Aqua Aquamarine Azure Bisque Blanched Almond Blue Violet Burlywood Cadet Blue Chartreuse Chocolate Coral Cornflower Blue Cornsilk Cyan Dark Blue Dark Cyan Dark Goldenrod Dark Gray Dark Green Dark Khaki Dark Magenta Dark Olive Green Dark Orange Dark Orchid Dark Red Dark Salmon Dark Sea Green Dark Slateblue Dark Slategray Dark Turquoise Dark Violet Deep Pink Deep Sky Blue Dimgray Dodger Blue Firebrick Floral White Forest Green Gainsboro Ghost White Gold Goldenrod Gray Green Yellow Honeydew Hot Pink Indian Red Ivory Khaki Lavender Lavender Blush Lawn Green Lemon Chiffon Light Blue Light Coral Light Cyan Light Goldenrod Light Goldenrod Yellow Light Gray Light Green Light Pink Light Salmon Light Sea Green Light Sky Blue Light Slateblue Light Slategray Light Steelblue Light Yellow Linen Magenta Medium Aquamarine Medium Blue Medium Orchid Medium Purple Medium Sea Green Medium Slateblue Medium Spring Green Medium Turquoise Medium Violet Red Midnightblue Mintcream Mistyrose Moccasin Navajo White Navyblue Old Lace Olive Drab Orange Red Orchid Pale Goldenrod Pale Green Pale Turquoise Pale Violetred Papayawhip Peach Puff Peru Plu Powder Blue Rosy Brown Royal Blue Saddle Brown Salmon Sandy Brown Sea Green Sea Shell Sienna Sky Blue Slateblue Slategray Snow Spring Green Steelblue Tan Thistle Tomato Turquoise Violet Violet Red Wheat White Whitesmoke Yellow Green Message: Smilies [quote][i]Originally posted by MrNutter[/i] [br]I've been getting bad fuel economy out of my V6 VN for awhile now, about 400km out of a tank (city driving). I decided to do something about it so I put in a new fuel filter, O2 sensor & as much as I don't believe in additives, used a bottle of injector cleaner. I did each thing seperately so I could see which one made the biggest difference after a full tank of fuel. After the O2 sensor was changed my economy got worse, down to about 300km per tank city driving. This was not the result I expected so I reset the ECU according to the instructions on this website. It seems to have made no difference. I did notice when I reset the ECU though that the revs didn't drop at any point like I expected them to, if anything they rose after about 10 seconds. I tried doing another reset but didn't worry about revving to 3000rpm, I just let it idle for a couple of minutes then took it for a drive. Still no joy. It seems to run fine but the economy is terrible. I've eliminated fuel leaks because I can't see or smell any petrol. There is something weird going on though as the gauge will drop substantially after the car has been parked for several hours. For example if I park the car with the needle bang on the half a tank mark & leave it overnight, I will go back the next morning & the needle will be 2-3mm above the next mark down, even after a belting on the gauge. The gauge waves around a little but seems accurate. It's says full when the tanks full, half when it's half full & empty when it's empty. I'm at a complete loss to explain it & more importantly, fix it. Anyone got any ideas? [/quote]    -  HTML is OFF | Forum Code is ON   Check here to include your profile signature. Check here to subscribe to this topic.